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Diffstat (limited to '')
| -rw-r--r-- | sound/soc/codecs/da7219-aad.c | 985 |
1 files changed, 985 insertions, 0 deletions
diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c new file mode 100644 index 000000000..c84107691 --- /dev/null +++ b/sound/soc/codecs/da7219-aad.c @@ -0,0 +1,985 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver + * + * Copyright (c) 2015 Dialog Semiconductor Ltd. + * + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/i2c.h> +#include <linux/property.h> +#include <linux/pm_wakeirq.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/workqueue.h> +#include <sound/soc.h> +#include <sound/jack.h> +#include <sound/da7219.h> + +#include "da7219.h" +#include "da7219-aad.h" + + +/* + * Detection control + */ + +void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack) +{ + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + + da7219->aad->jack = jack; + da7219->aad->jack_inserted = false; + + /* Send an initial empty report */ + snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK); + + /* Enable/Disable jack detection */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, + (jack ? DA7219_ACCDET_EN_MASK : 0)); +} +EXPORT_SYMBOL_GPL(da7219_aad_jack_det); + +/* + * Button/HPTest work + */ + +static void da7219_aad_btn_det_work(struct work_struct *work) +{ + struct da7219_aad_priv *da7219_aad = + container_of(work, struct da7219_aad_priv, btn_det_work); + struct snd_soc_component *component = da7219_aad->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + u8 statusa, micbias_ctrl; + bool micbias_up = false; + int retries = 0; + + /* Disable ground switch */ + snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00); + + /* Drive headphones/lineout */ + snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, + DA7219_HP_L_AMP_OE_MASK, + DA7219_HP_L_AMP_OE_MASK); + snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, + DA7219_HP_R_AMP_OE_MASK, + DA7219_HP_R_AMP_OE_MASK); + + /* Make sure mic bias is up */ + snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + + do { + statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A); + if (statusa & DA7219_MICBIAS_UP_STS_MASK) + micbias_up = true; + else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES) + msleep(DA7219_AAD_MICBIAS_CHK_DELAY); + } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES)); + + if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES) + dev_warn(component->dev, "Mic bias status check timed out"); + + da7219->micbias_on_event = true; + + /* + * Mic bias pulse required to enable mic, must be done before enabling + * button detection to prevent erroneous button readings. + */ + if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) { + /* Pulse higher level voltage */ + micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL); + snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL, + DA7219_MICBIAS1_LEVEL_MASK, + da7219_aad->micbias_pulse_lvl); + msleep(da7219_aad->micbias_pulse_time); + snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl); + + } + + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, + DA7219_BUTTON_CONFIG_MASK, + da7219_aad->btn_cfg); +} + +static void da7219_aad_hptest_work(struct work_struct *work) +{ + struct da7219_aad_priv *da7219_aad = + container_of(work, struct da7219_aad_priv, hptest_work); + struct snd_soc_component *component = da7219_aad->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + + __le16 tonegen_freq_hptest; + u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8; + int report = 0, ret; + + /* Lock DAPM, Kcontrols affected by this test and the PLL */ + snd_soc_dapm_mutex_lock(dapm); + mutex_lock(&da7219->ctrl_lock); + mutex_lock(&da7219->pll_lock); + + /* Ensure MCLK is available for HP test procedure */ + if (da7219->mclk) { + ret = clk_prepare_enable(da7219->mclk); + if (ret) { + dev_err(component->dev, "Failed to enable mclk - %d\n", ret); + mutex_unlock(&da7219->pll_lock); + mutex_unlock(&da7219->ctrl_lock); + snd_soc_dapm_mutex_unlock(dapm); + return; + } + } + + /* + * If MCLK not present, then we're using the internal oscillator and + * require different frequency settings to achieve the same result. + * + * If MCLK is present, but PLL is not enabled then we enable it here to + * ensure a consistent detection procedure. + */ + pll_srm_sts = snd_soc_component_read(component, DA7219_PLL_SRM_STS); + if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) { + tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ); + + pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL); + if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS) + da7219_set_pll(component, DA7219_SYSCLK_PLL, + DA7219_PLL_FREQ_OUT_98304); + } else { + tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC); + } + + /* Disable ground switch */ + snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00); + + /* Ensure gain ramping at fastest rate */ + gain_ramp_ctrl = snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL); + snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8); + + /* Bypass cache so it saves current settings */ + regcache_cache_bypass(da7219->regmap, true); + + /* Make sure Tone Generator is disabled */ + snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); + + /* Enable HPTest block, 1KOhms check */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, + DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK, + DA7219_HPTEST_EN_MASK | + DA7219_HPTEST_RES_SEL_1KOHMS); + + /* Set gains to 0db */ + snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); + snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); + snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB); + snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB); + + /* Disable DAC filters, EQs and soft mute */ + snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK, + 0); + snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK, + 0); + snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5, + DA7219_DAC_SOFTMUTE_EN_MASK, 0); + + /* Enable HP left & right paths */ + snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK, + DA7219_CP_EN_MASK); + snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC, + DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK, + DA7219_DAC_L_SRC_TONEGEN | + DA7219_DAC_R_SRC_TONEGEN); + snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, + DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK, + DA7219_DAC_L_EN_MASK); + snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, + DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK, + DA7219_DAC_R_EN_MASK); + snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT, + DA7219_MIXOUT_L_MIX_SELECT_MASK, + DA7219_MIXOUT_L_MIX_SELECT_MASK); + snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT, + DA7219_MIXOUT_R_MIX_SELECT_MASK, + DA7219_MIXOUT_R_MIX_SELECT_MASK); + snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L, + DA7219_OUTFILT_ST_1L_SRC_MASK, + DA7219_DMIX_ST_SRC_OUTFILT1L); + snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R, + DA7219_OUTFILT_ST_1R_SRC_MASK, + DA7219_DMIX_ST_SRC_OUTFILT1R); + snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL, + DA7219_MIXOUT_L_AMP_EN_MASK, + DA7219_MIXOUT_L_AMP_EN_MASK); + snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL, + DA7219_MIXOUT_R_AMP_EN_MASK, + DA7219_MIXOUT_R_AMP_EN_MASK); + snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, + DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK, + DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK); + snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, + DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK, + DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK); + msleep(DA7219_SETTLING_DELAY); + snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, + DA7219_HP_L_AMP_MUTE_EN_MASK | + DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0); + snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, + DA7219_HP_R_AMP_MUTE_EN_MASK | + DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0); + + /* + * If we're running from the internal oscillator then give audio paths + * time to settle before running test. + */ + if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) + msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); + + /* Configure & start Tone Generator */ + snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK); + regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, + &tonegen_freq_hptest, sizeof(tonegen_freq_hptest)); + snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2, + DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK, + DA7219_SWG_SEL_SRAMP | + DA7219_TONE_GEN_GAIN_MINUS_15DB); + snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK); + + msleep(DA7219_AAD_HPTEST_PERIOD); + + /* Grab comparator reading */ + accdet_cfg8 = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_8); + if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK) + report |= SND_JACK_HEADPHONE; + else + report |= SND_JACK_LINEOUT; + + /* Stop tone generator */ + snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); + + msleep(DA7219_AAD_HPTEST_PERIOD); + + /* Restore original settings from cache */ + regcache_mark_dirty(da7219->regmap); + regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL, + DA7219_HP_R_CTRL); + msleep(DA7219_SETTLING_DELAY); + regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL, + DA7219_MIXOUT_R_CTRL); + regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L, + DA7219_DROUTING_ST_OUTFILT_1R); + regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT, + DA7219_MIXOUT_R_SELECT); + regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL, + DA7219_DAC_R_CTRL); + regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC, + DA7219_DIG_ROUTING_DAC); + regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL); + regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5, + DA7219_DAC_FILTERS5); + regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4, + DA7219_DAC_FILTERS1); + regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN, + DA7219_HP_R_GAIN); + regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN, + DA7219_DAC_R_GAIN); + regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER, + DA7219_TONE_GEN_ON_PER); + regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, + DA7219_TONE_GEN_FREQ1_U); + regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1, + DA7219_TONE_GEN_CFG2); + + regcache_cache_bypass(da7219->regmap, false); + + /* Disable HPTest block */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, + DA7219_HPTEST_EN_MASK, 0); + + /* + * If we're running from the internal oscillator then give audio paths + * time to settle before allowing headphones to be driven as required. + */ + if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) + msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); + + /* Restore gain ramping rate */ + snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl); + + /* Drive Headphones/lineout */ + snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK, + DA7219_HP_L_AMP_OE_MASK); + snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK, + DA7219_HP_R_AMP_OE_MASK); + + /* Restore PLL to previous configuration, if re-configured */ + if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) && + ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)) + da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0); + + /* Remove MCLK, if previously enabled */ + if (da7219->mclk) + clk_disable_unprepare(da7219->mclk); + + mutex_unlock(&da7219->pll_lock); + mutex_unlock(&da7219->ctrl_lock); + snd_soc_dapm_mutex_unlock(dapm); + + /* + * Only send report if jack hasn't been removed during process, + * otherwise it's invalid and we drop it. + */ + if (da7219_aad->jack_inserted) + snd_soc_jack_report(da7219_aad->jack, report, + SND_JACK_HEADSET | SND_JACK_LINEOUT); +} + + +/* + * IRQ + */ + +static irqreturn_t da7219_aad_irq_thread(int irq, void *data) +{ + struct da7219_aad_priv *da7219_aad = data; + struct snd_soc_component *component = da7219_aad->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + u8 events[DA7219_AAD_IRQ_REG_MAX]; + u8 statusa; + int i, ret, report = 0, mask = 0; + + /* Read current IRQ events */ + ret = regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, + events, DA7219_AAD_IRQ_REG_MAX); + if (ret) { + dev_warn_ratelimited(component->dev, "Failed to read IRQ events: %d\n", ret); + return IRQ_NONE; + } + + if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B]) + return IRQ_NONE; + + /* Read status register for jack insertion & type status */ + statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A); + + /* Clear events */ + regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, + events, DA7219_AAD_IRQ_REG_MAX); + + dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n", + events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B], + statusa); + + if (statusa & DA7219_JACK_INSERTION_STS_MASK) { + /* Jack Insertion */ + if (events[DA7219_AAD_IRQ_REG_A] & + DA7219_E_JACK_INSERTED_MASK) { + report |= SND_JACK_MECHANICAL; + mask |= SND_JACK_MECHANICAL; + da7219_aad->jack_inserted = true; + } + + /* Jack type detection */ + if (events[DA7219_AAD_IRQ_REG_A] & + DA7219_E_JACK_DETECT_COMPLETE_MASK) { + /* + * If 4-pole, then enable button detection, else perform + * HP impedance test to determine output type to report. + * + * We schedule work here as the tasks themselves can + * take time to complete, and in particular for hptest + * we want to be able to check if the jack was removed + * during the procedure as this will invalidate the + * result. By doing this as work, the IRQ thread can + * handle a removal, and we can check at the end of + * hptest if we have a valid result or not. + */ + if (statusa & DA7219_JACK_TYPE_STS_MASK) { + report |= SND_JACK_HEADSET; + mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT; + schedule_work(&da7219_aad->btn_det_work); + } else { + schedule_work(&da7219_aad->hptest_work); + } + } + + /* Button support for 4-pole jack */ + if (statusa & DA7219_JACK_TYPE_STS_MASK) { + for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) { + /* Button Press */ + if (events[DA7219_AAD_IRQ_REG_B] & + (DA7219_E_BUTTON_A_PRESSED_MASK << i)) { + report |= SND_JACK_BTN_0 >> i; + mask |= SND_JACK_BTN_0 >> i; + } + } + snd_soc_jack_report(da7219_aad->jack, report, mask); + + for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) { + /* Button Release */ + if (events[DA7219_AAD_IRQ_REG_B] & + (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) { + report &= ~(SND_JACK_BTN_0 >> i); + mask |= SND_JACK_BTN_0 >> i; + } + } + } + } else { + /* Jack removal */ + if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) { + report = 0; + mask |= DA7219_AAD_REPORT_ALL_MASK; + da7219_aad->jack_inserted = false; + + /* Cancel any pending work */ + cancel_work_sync(&da7219_aad->btn_det_work); + cancel_work_sync(&da7219_aad->hptest_work); + + /* Un-drive headphones/lineout */ + snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, + DA7219_HP_R_AMP_OE_MASK, 0); + snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, + DA7219_HP_L_AMP_OE_MASK, 0); + + /* Ensure button detection disabled */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, + DA7219_BUTTON_CONFIG_MASK, 0); + + da7219->micbias_on_event = false; + + /* Disable mic bias */ + snd_soc_dapm_disable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + + /* Enable ground switch */ + snd_soc_component_update_bits(component, 0xFB, 0x01, 0x01); + } + } + + snd_soc_jack_report(da7219_aad->jack, report, mask); + + return IRQ_HANDLED; +} + +/* + * DT/ACPI to pdata conversion + */ + +static enum da7219_aad_micbias_pulse_lvl + da7219_aad_fw_micbias_pulse_lvl(struct device *dev, u32 val) +{ + switch (val) { + case 2800: + return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V; + case 2900: + return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V; + default: + dev_warn(dev, "Invalid micbias pulse level"); + return DA7219_AAD_MICBIAS_PULSE_LVL_OFF; + } +} + +static enum da7219_aad_btn_cfg + da7219_aad_fw_btn_cfg(struct device *dev, u32 val) +{ + switch (val) { + case 2: + return DA7219_AAD_BTN_CFG_2MS; + case 5: + return DA7219_AAD_BTN_CFG_5MS; + case 10: + return DA7219_AAD_BTN_CFG_10MS; + case 50: + return DA7219_AAD_BTN_CFG_50MS; + case 100: + return DA7219_AAD_BTN_CFG_100MS; + case 200: + return DA7219_AAD_BTN_CFG_200MS; + case 500: + return DA7219_AAD_BTN_CFG_500MS; + default: + dev_warn(dev, "Invalid button config"); + return DA7219_AAD_BTN_CFG_10MS; + } +} + +static enum da7219_aad_mic_det_thr + da7219_aad_fw_mic_det_thr(struct device *dev, u32 val) +{ + switch (val) { + case 200: + return DA7219_AAD_MIC_DET_THR_200_OHMS; + case 500: + return DA7219_AAD_MIC_DET_THR_500_OHMS; + case 750: + return DA7219_AAD_MIC_DET_THR_750_OHMS; + case 1000: + return DA7219_AAD_MIC_DET_THR_1000_OHMS; + default: + dev_warn(dev, "Invalid mic detect threshold"); + return DA7219_AAD_MIC_DET_THR_500_OHMS; + } +} + +static enum da7219_aad_jack_ins_deb + da7219_aad_fw_jack_ins_deb(struct device *dev, u32 val) +{ + switch (val) { + case 5: + return DA7219_AAD_JACK_INS_DEB_5MS; + case 10: + return DA7219_AAD_JACK_INS_DEB_10MS; + case 20: + return DA7219_AAD_JACK_INS_DEB_20MS; + case 50: + return DA7219_AAD_JACK_INS_DEB_50MS; + case 100: + return DA7219_AAD_JACK_INS_DEB_100MS; + case 200: + return DA7219_AAD_JACK_INS_DEB_200MS; + case 500: + return DA7219_AAD_JACK_INS_DEB_500MS; + case 1000: + return DA7219_AAD_JACK_INS_DEB_1S; + default: + dev_warn(dev, "Invalid jack insert debounce"); + return DA7219_AAD_JACK_INS_DEB_20MS; + } +} + +static enum da7219_aad_jack_det_rate + da7219_aad_fw_jack_det_rate(struct device *dev, const char *str) +{ + if (!strcmp(str, "32ms_64ms")) { + return DA7219_AAD_JACK_DET_RATE_32_64MS; + } else if (!strcmp(str, "64ms_128ms")) { + return DA7219_AAD_JACK_DET_RATE_64_128MS; + } else if (!strcmp(str, "128ms_256ms")) { + return DA7219_AAD_JACK_DET_RATE_128_256MS; + } else if (!strcmp(str, "256ms_512ms")) { + return DA7219_AAD_JACK_DET_RATE_256_512MS; + } else { + dev_warn(dev, "Invalid jack detect rate"); + return DA7219_AAD_JACK_DET_RATE_256_512MS; + } +} + +static enum da7219_aad_jack_rem_deb + da7219_aad_fw_jack_rem_deb(struct device *dev, u32 val) +{ + switch (val) { + case 1: + return DA7219_AAD_JACK_REM_DEB_1MS; + case 5: + return DA7219_AAD_JACK_REM_DEB_5MS; + case 10: + return DA7219_AAD_JACK_REM_DEB_10MS; + case 20: + return DA7219_AAD_JACK_REM_DEB_20MS; + default: + dev_warn(dev, "Invalid jack removal debounce"); + return DA7219_AAD_JACK_REM_DEB_1MS; + } +} + +static enum da7219_aad_btn_avg + da7219_aad_fw_btn_avg(struct device *dev, u32 val) +{ + switch (val) { + case 1: + return DA7219_AAD_BTN_AVG_1; + case 2: + return DA7219_AAD_BTN_AVG_2; + case 4: + return DA7219_AAD_BTN_AVG_4; + case 8: + return DA7219_AAD_BTN_AVG_8; + default: + dev_warn(dev, "Invalid button average value"); + return DA7219_AAD_BTN_AVG_2; + } +} + +static enum da7219_aad_adc_1bit_rpt + da7219_aad_fw_adc_1bit_rpt(struct device *dev, u32 val) +{ + switch (val) { + case 1: + return DA7219_AAD_ADC_1BIT_RPT_1; + case 2: + return DA7219_AAD_ADC_1BIT_RPT_2; + case 4: + return DA7219_AAD_ADC_1BIT_RPT_4; + case 8: + return DA7219_AAD_ADC_1BIT_RPT_8; + default: + dev_warn(dev, "Invalid ADC 1-bit repeat value"); + return DA7219_AAD_ADC_1BIT_RPT_1; + } +} + +static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev) +{ + struct i2c_client *i2c = to_i2c_client(dev); + struct fwnode_handle *aad_np; + struct da7219_aad_pdata *aad_pdata; + const char *fw_str; + u32 fw_val32; + + aad_np = device_get_named_child_node(dev, "da7219_aad"); + if (!aad_np) + return NULL; + + aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL); + if (!aad_pdata) + return NULL; + + aad_pdata->irq = i2c->irq; + + if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl", + &fw_val32) >= 0) + aad_pdata->micbias_pulse_lvl = + da7219_aad_fw_micbias_pulse_lvl(dev, fw_val32); + else + aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF; + + if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time", + &fw_val32) >= 0) + aad_pdata->micbias_pulse_time = fw_val32; + + if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0) + aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(dev, fw_val32); + else + aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS; + + if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0) + aad_pdata->mic_det_thr = + da7219_aad_fw_mic_det_thr(dev, fw_val32); + else + aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_200_OHMS; + + if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0) + aad_pdata->jack_ins_deb = + da7219_aad_fw_jack_ins_deb(dev, fw_val32); + else + aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS; + + if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str)) + aad_pdata->jack_det_rate = + da7219_aad_fw_jack_det_rate(dev, fw_str); + else + aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS; + + if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0) + aad_pdata->jack_rem_deb = + da7219_aad_fw_jack_rem_deb(dev, fw_val32); + else + aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS; + + if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0) + aad_pdata->a_d_btn_thr = (u8) fw_val32; + else + aad_pdata->a_d_btn_thr = 0xA; + + if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0) + aad_pdata->d_b_btn_thr = (u8) fw_val32; + else + aad_pdata->d_b_btn_thr = 0x16; + + if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0) + aad_pdata->b_c_btn_thr = (u8) fw_val32; + else + aad_pdata->b_c_btn_thr = 0x21; + + if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0) + aad_pdata->c_mic_btn_thr = (u8) fw_val32; + else + aad_pdata->c_mic_btn_thr = 0x3E; + + if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0) + aad_pdata->btn_avg = da7219_aad_fw_btn_avg(dev, fw_val32); + else + aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2; + + if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0) + aad_pdata->adc_1bit_rpt = + da7219_aad_fw_adc_1bit_rpt(dev, fw_val32); + else + aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1; + + return aad_pdata; +} + +static void da7219_aad_handle_pdata(struct snd_soc_component *component) +{ + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct da7219_pdata *pdata = da7219->pdata; + + if ((pdata) && (pdata->aad_pdata)) { + struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata; + u8 cfg, mask; + + da7219_aad->irq = aad_pdata->irq; + + switch (aad_pdata->micbias_pulse_lvl) { + case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V: + case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V: + da7219_aad->micbias_pulse_lvl = + (aad_pdata->micbias_pulse_lvl << + DA7219_MICBIAS1_LEVEL_SHIFT); + break; + default: + break; + } + + da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time; + + switch (aad_pdata->btn_cfg) { + case DA7219_AAD_BTN_CFG_2MS: + case DA7219_AAD_BTN_CFG_5MS: + case DA7219_AAD_BTN_CFG_10MS: + case DA7219_AAD_BTN_CFG_50MS: + case DA7219_AAD_BTN_CFG_100MS: + case DA7219_AAD_BTN_CFG_200MS: + case DA7219_AAD_BTN_CFG_500MS: + da7219_aad->btn_cfg = (aad_pdata->btn_cfg << + DA7219_BUTTON_CONFIG_SHIFT); + } + + cfg = 0; + mask = 0; + switch (aad_pdata->mic_det_thr) { + case DA7219_AAD_MIC_DET_THR_200_OHMS: + case DA7219_AAD_MIC_DET_THR_500_OHMS: + case DA7219_AAD_MIC_DET_THR_750_OHMS: + case DA7219_AAD_MIC_DET_THR_1000_OHMS: + cfg |= (aad_pdata->mic_det_thr << + DA7219_MIC_DET_THRESH_SHIFT); + mask |= DA7219_MIC_DET_THRESH_MASK; + } + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg); + + cfg = 0; + mask = 0; + switch (aad_pdata->jack_ins_deb) { + case DA7219_AAD_JACK_INS_DEB_5MS: + case DA7219_AAD_JACK_INS_DEB_10MS: + case DA7219_AAD_JACK_INS_DEB_20MS: + case DA7219_AAD_JACK_INS_DEB_50MS: + case DA7219_AAD_JACK_INS_DEB_100MS: + case DA7219_AAD_JACK_INS_DEB_200MS: + case DA7219_AAD_JACK_INS_DEB_500MS: + case DA7219_AAD_JACK_INS_DEB_1S: + cfg |= (aad_pdata->jack_ins_deb << + DA7219_JACKDET_DEBOUNCE_SHIFT); + mask |= DA7219_JACKDET_DEBOUNCE_MASK; + } + switch (aad_pdata->jack_det_rate) { + case DA7219_AAD_JACK_DET_RATE_32_64MS: + case DA7219_AAD_JACK_DET_RATE_64_128MS: + case DA7219_AAD_JACK_DET_RATE_128_256MS: + case DA7219_AAD_JACK_DET_RATE_256_512MS: + cfg |= (aad_pdata->jack_det_rate << + DA7219_JACK_DETECT_RATE_SHIFT); + mask |= DA7219_JACK_DETECT_RATE_MASK; + } + switch (aad_pdata->jack_rem_deb) { + case DA7219_AAD_JACK_REM_DEB_1MS: + case DA7219_AAD_JACK_REM_DEB_5MS: + case DA7219_AAD_JACK_REM_DEB_10MS: + case DA7219_AAD_JACK_REM_DEB_20MS: + cfg |= (aad_pdata->jack_rem_deb << + DA7219_JACKDET_REM_DEB_SHIFT); + mask |= DA7219_JACKDET_REM_DEB_MASK; + } + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg); + + snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3, + aad_pdata->a_d_btn_thr); + snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4, + aad_pdata->d_b_btn_thr); + snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5, + aad_pdata->b_c_btn_thr); + snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6, + aad_pdata->c_mic_btn_thr); + + cfg = 0; + mask = 0; + switch (aad_pdata->btn_avg) { + case DA7219_AAD_BTN_AVG_1: + case DA7219_AAD_BTN_AVG_2: + case DA7219_AAD_BTN_AVG_4: + case DA7219_AAD_BTN_AVG_8: + cfg |= (aad_pdata->btn_avg << + DA7219_BUTTON_AVERAGE_SHIFT); + mask |= DA7219_BUTTON_AVERAGE_MASK; + } + switch (aad_pdata->adc_1bit_rpt) { + case DA7219_AAD_ADC_1BIT_RPT_1: + case DA7219_AAD_ADC_1BIT_RPT_2: + case DA7219_AAD_ADC_1BIT_RPT_4: + case DA7219_AAD_ADC_1BIT_RPT_8: + cfg |= (aad_pdata->adc_1bit_rpt << + DA7219_ADC_1_BIT_REPEAT_SHIFT); + mask |= DA7219_ADC_1_BIT_REPEAT_MASK; + } + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg); + } +} + + +/* + * Suspend/Resume + */ + +void da7219_aad_suspend(struct snd_soc_component *component) +{ + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + u8 micbias_ctrl; + + if (da7219_aad->jack) { + /* Disable jack detection during suspend */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, 0); + + /* + * If we have a 4-pole jack inserted, then micbias will be + * enabled. We can disable micbias here, and keep a note to + * re-enable it on resume. If jack removal occurred during + * suspend then this will be dealt with through the IRQ handler. + */ + if (da7219_aad->jack_inserted) { + micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL); + if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) { + snd_soc_dapm_disable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + da7219_aad->micbias_resume_enable = true; + } + } + } + + synchronize_irq(da7219_aad->irq); +} + +void da7219_aad_resume(struct snd_soc_component *component) +{ + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + struct da7219_aad_priv *da7219_aad = da7219->aad; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + + if (da7219_aad->jack) { + /* Re-enable micbias if previously enabled for 4-pole jack */ + if (da7219_aad->jack_inserted && + da7219_aad->micbias_resume_enable) { + snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); + snd_soc_dapm_sync(dapm); + da7219_aad->micbias_resume_enable = false; + } + + /* Re-enable jack detection */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, + DA7219_ACCDET_EN_MASK, + DA7219_ACCDET_EN_MASK); + } +} + + +/* + * Init/Exit + */ + +int da7219_aad_init(struct snd_soc_component *component) +{ + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + struct da7219_aad_priv *da7219_aad = da7219->aad; + u8 mask[DA7219_AAD_IRQ_REG_MAX]; + int ret; + + da7219_aad->component = component; + + /* Handle any DT/ACPI/platform data */ + da7219_aad_handle_pdata(component); + + /* Disable button detection */ + snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, + DA7219_BUTTON_CONFIG_MASK, 0); + + /* Enable ground switch */ + snd_soc_component_update_bits(component, 0xFB, 0x01, 0x01); + + INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work); + INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work); + + ret = request_threaded_irq(da7219_aad->irq, NULL, + da7219_aad_irq_thread, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "da7219-aad", da7219_aad); + if (ret) { + dev_err(component->dev, "Failed to request IRQ: %d\n", ret); + return ret; + } + + /* Unmask AAD IRQs */ + memset(mask, 0, DA7219_AAD_IRQ_REG_MAX); + regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, + &mask, DA7219_AAD_IRQ_REG_MAX); + + return 0; +} +EXPORT_SYMBOL_GPL(da7219_aad_init); + +void da7219_aad_exit(struct snd_soc_component *component) +{ + struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); + struct da7219_aad_priv *da7219_aad = da7219->aad; + u8 mask[DA7219_AAD_IRQ_REG_MAX]; + + /* Mask off AAD IRQs */ + memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX); + regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, + mask, DA7219_AAD_IRQ_REG_MAX); + + free_irq(da7219_aad->irq, da7219_aad); + + cancel_work_sync(&da7219_aad->btn_det_work); + cancel_work_sync(&da7219_aad->hptest_work); +} +EXPORT_SYMBOL_GPL(da7219_aad_exit); + +/* + * AAD related I2C probe handling + */ + +int da7219_aad_probe(struct i2c_client *i2c) +{ + struct da7219_priv *da7219 = i2c_get_clientdata(i2c); + struct device *dev = &i2c->dev; + struct da7219_aad_priv *da7219_aad; + + da7219_aad = devm_kzalloc(dev, sizeof(*da7219_aad), GFP_KERNEL); + if (!da7219_aad) + return -ENOMEM; + + da7219->aad = da7219_aad; + + /* Retrieve any DT/ACPI/platform data */ + if (da7219->pdata && !da7219->pdata->aad_pdata) + da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(dev); + + return 0; +} +EXPORT_SYMBOL_GPL(da7219_aad_probe); + +MODULE_DESCRIPTION("ASoC DA7219 AAD Driver"); +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>"); +MODULE_LICENSE("GPL"); |